Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Operating Rails in Kubernetes
Search
Kir Shatrov
April 17, 2018
Programming
3
460
Operating Rails in Kubernetes
My talk at RailsConf 2018.
Kir Shatrov
April 17, 2018
Tweet
Share
More Decks by Kir Shatrov
See All by Kir Shatrov
Running Jobs at Scale
kirs
1
210
RailsClub 2016
kirs
2
310
Performance regressions in Ruby on Rails Core
kirs
0
210
Building a toolkit to detect performance regressions in Ruby on Rails core
kirs
3
5.6k
Развертывание веб-приложений и фреймворк Capistrano
kirs
1
280
Capistrano 3
kirs
4
2.8k
Other Decks in Programming
See All in Programming
変化を楽しむエンジニアリング ~ いままでとこれから ~
murajun1978
0
710
What's new in Adaptive Android development
fornewid
0
140
DataformでPythonする / dataform-de-python
snhryt
0
160
Comparing decimals in Swift Testing
417_72ki
0
170
React 使いじゃなくても知っておきたい教養としての React
oukayuka
18
5.5k
構文解析器入門
ydah
7
2.1k
Nuances on Kubernetes - RubyConf Taiwan 2025
envek
0
140
PHPUnitの限界をPlaywrightで補完するテストアプローチ
yuzneri
0
400
Constant integer division faster than compiler-generated code
herumi
2
570
「リーダーは意思決定する人」って本当?~ 学びを現場で活かす、リーダー4ヶ月目の試行錯誤 ~
marina1017
0
200
GUI操作LLMの最新動向: UI-TARSと関連論文紹介
kfujikawa
0
770
Reactの歴史を振り返る
tutinoko
1
180
Featured
See All Featured
Learning to Love Humans: Emotional Interface Design
aarron
273
40k
Six Lessons from altMBA
skipperchong
28
3.9k
Product Roadmaps are Hard
iamctodd
PRO
54
11k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
eileencodes
26
3k
Stop Working from a Prison Cell
hatefulcrawdad
271
21k
Designing for Performance
lara
610
69k
How to Ace a Technical Interview
jacobian
278
23k
A better future with KSS
kneath
239
17k
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
tammyeverts
8
450
Making the Leap to Tech Lead
cromwellryan
134
9.5k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
23
1.4k
A Modern Web Designer's Workflow
chriscoyier
695
190k
Transcript
Operating Rails in Kubernetes Kir Shatrov
1. Intro to Kubernetes 2. Rails in Kubernetes 3. Shopify’s
migration story
Containers are awesome! *
Containerizing Rails: Techniques, Pitfalls, & Best Practices by Daniel Azuma
Tomorrow 3:30pm
None
None
app01 app02 app03
app01 app02 app03
None
None
None
Smart container scheduling for better utilization
Smart container scheduling for better utilization
Smart container scheduling for better utilization
Kubernetes basics: Pod
Kubernetes basics: Deployment
web jobs Kubernetes basics: Deployment
None
None
web jobs Kubernetes basics: Deployment
web jobs Kubernetes basics: Deployment
web jobs Kubernetes basics: Deployment
Managing Resources
YAML
None
YAML apply when changed
YAML store in repository
None
Deploy process controlling servers
Deploy process sequentially applying commands by SSH
Capistrano sequentially applying commands by SSH
None
kubectl apply --file web.yml
kubectl apply --file jobs.yml
Controlling servers vs describing configuration
Controlling servers Describing configuration running commands remotely comparing output with
expected not prone to failures push configuration poll for it to apply abstracts from physical machines self-healing
Controlling servers Describing configuration running commands remotely comparing output with
expected not prone to failures push configuration poll for it to apply abstracts from physical machines self-healing
None
It's easy to run a container, but not Rails
The Twelve-Factor app
None
Disposability and termination
Web requests
Background Jobs
Long-running jobs
None
Abort and re-enqueue
Concurrency scale out via the process model
None
Assets
rake assets:precompile
Assets Shipped in container
Database Migrations
Migrations as a part of deploy
Migrations as a part of deploy
Asynchronous Migrations
1. Change code and add a migration 1. Add a
migration 2. Change code
1. Change code and add a migration 1. Add a
migration 2. Change code
Asynchronous Migrations
None
None
Secret Management
Secrets in the environment
Secrets in a container
Secrets in a container
Rails 5.2 Credentials
None
ENV[‘RAILS_MASTER_KEY’]
The Twelve Factors Let workers terminate gracefully Migrations as a
part of deploy can be fragile Rails 5.2 Credentials + Kubernetes Secrets
Kubernetes at Shopify
None
Resource specs in YAML
None
None
None
kubectl apply --file web.yml
None
None
Let robots help humans to migrate apps Developers don’t have
to write YAML configs kubernetes-deploy brings visibility into rollout progress
None
Kubernetes helps organizations to efficiently schedule workload and save resources
It’s not magic, it only schedules and runs your containers Things you need to know about Rails
None
None
Thanks! @kirs @kirshatrov